Why not make str.join() coerce the items in its iterables

[AlexWaygood]

This was most recently proposed just two weeks ago on this very forum:

Allow list of integers in `str.join`

I wondered today for the Nth time why the following is not permitted - the intent seems clear enough: >>> import sys >>> '.'.join(sys.version_info[:2]) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: sequence item 0: expected str instance, int found Of course, it’s possible to work around this >>> '.'.join([str(x) for x in sys.version_info[:2]]) '3.11' but it seems… unnecessary? Once I’m calling from a string.join method, what possible other output than a…